Deadbolts come in two versions.
Door handle with key lock on both sides.
A double cylinder door knob is a door knob that is keyed on both sides of the door or in a place where the door that needs the option of locking on either side of the door.
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Double cylinder deadbolts have a keyed cylinder on both sides.
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These door knobs are not very common at all that s for sure.
This is a good option for doors with glass or windows since an intruder can t break into the door even if the glass window is broken.
These are often used on gates with rungs that you can reach through and get to the handle on the other side.
I was surprised to find that there is a need for them at times.
They re popular and attractive to use on front doors.
Our store associates can key all of your locks to work with the same key.
Door handlesets come with a handle and key lock to install on the exterior of a door.
Most types of locks for doors will work on both types of door handings.
In the case of key pocket door locks the procedure is similar but first you must insert a key in the keyway.
After you unlock the door you press a thumb latch on the handleset to open or close the door.
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These locks are labeled as reversible handing or universal handing and can be installed on either side of the door.
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When shopping for types of door locks and handles.
Why buy a knob lock that can be locked with a key on both sides.
Double sided door locks have a keypad on both sides the inside and the outside so you have to enter a code to open the lock from either side.
This is especially true for doors that have glass panels or adjacent windows i e.
So to lock or unlock from either side of the door you just need to handle the turning mechanism.